Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Satoshi Arimoto

Makoto Takahashi

Seiichi Nakatani

Koichi Hirano

Tsuguhiro Korenaga

Kenji Narumi

Yoshihisa Yamashita

Takamasa Ando

Tetsuyoshi Ogura

Jin Muraoka

Yumiko Ohno

Rui Hiraoka

A counting method includes aggregating particles in a sample by action of first-direction dielectrophoretic force, dispersing the aggregated particles by action of second-direction dielectrophoretic force, which is different from the first-direction dielectrophoretic force, capturing a dispersion image including the dispersed particles, and determining the number of particles on the basis of the dispersion image.

Counting method and counting apparatus

A target substance detection method includes forming a complex by causing a target substance and a dielectric particle to bind to each other, the dielectric particle being modified with a substance having a property of specifically binding to the target substance; separating the complex and an unbound particle from each other in a liquid by dielectrophoresis, the unbound particle being a dielectric particle not constituting the complex; and detecting the target substance included in the separated complex by using an imaging element.

Detection method and detection device

A biometric apparatus includes a light source, an image sensor, a control circuit, and a signal processing circuit. The control circuit causes a light source to repeatedly emit a light pulse radiated onto a target part including a head of a target, causes an image sensor to receive a reflected light pulse which is caused as the light pulse is radiated onto the target part, causes the image sensor to output first image data indicating appearance of a face of the target, and causes the image sensor to output second image data according to distribution of an amount of light of at least one of components of the reflected light pulse. The signal processing circuit generates data indicating a state of the target based on a temporal change in the first image data and a temporal change in the second image data and outputs the data.

Biometric apparatus, biometric method, and non-transitory computer-readable storage medium

A target substance detection method includes forming a complex by causing a target substance and a dielectric particle to bind to each other, the dielectric particle being modified with a substance (for example, an antibody) having a property of specifically binding to the target substance; subjecting a bound particle and an unbound particle to dielectrophoresis in a liquid, the bound particle being the dielectric particle constituting the complex, the unbound particle being a dielectric particle not constituting the complex; and detecting the target substance in the complex, based on a difference in motion between the bound particle and the unbound particle caused by the dielectrophoresis.

The present invention provides a cocaine aptamer represented by at least one selected from the group consisting of the following chemical formula (CI) and the following chemical formula (CII),5'-R-DNA-L-Fc-3&#x2032;&#x2003;&#x2003;(CI)5&#x2032;-Fc-L-DNA-R-3&#x2032;&#x2003;&#x2003;(CII) The above-identified cocaine aptamer is used to detect cocaine with high sensitivity.

Cocaine aptamer and method for detecting cocaine using the same

The present invention provides a cocaine aptamer represented by the following chemical formula (CI),R-DNA-L-Fc&#x2003;&#x2003;(CI) The present invention provides a cocaine aptamer capable of detecting cocaine with high sensitivity.

The present invention provides a cocaine aptamer represented by the following chemical formula (Cl),R-DNA-L-Fc&#x2003;&#x2003;(Cl) The cocaine aptamer is capable of detecting cocaine with high sensitivity.

The present invention provides an electrostatic atomizer comprising: a container having an inlet; an atomization electrode having one end projecting in the container; an opposite electrode provided in the container; a tubular collection electrode provided opposite to the atomization electrode; a mask surrounding an outer periphery of the tubular collection electrode; and a cooling part for cooling the tubular collection electrode. The opposite electrode is provided between the atomization electrode and the tubular collection electrode. The mask is formed of resin. The mask comprises a mask through-hole. The tubular collection electrode is inserted in the mask through-hole. One end of the tubular collection electrode is located in the mask through-hole. The present invention provides a method for efficiently obtaining a liquid sample from a gaseous sample and an electrostatic atomizer suitable for the method.

Apparatus and method for obtaining liquid sample from gaseous sample

An electrochemical detector is an electrochemical detector for detecting a substance in a liquid by generating a redox cycle, the electrochemical detector comprising: a first working electrode having a first electrode surface, a second working electrode having a second electrode surface, and a plurality of insulating spacer particles, wherein the first and second electrode surfaces are placed so as to face each other so that an electric field is formed between the first and second electrode surfaces, and the plurality of spacer particles are placed along the first and second electrode surfaces so as to separate the first and second electrode surfaces from each other.

Electrochemical detector and method for producing same

Provided is a method for accurately quantifying a chemical substance contained in a sample solution at a significantly low concentration of not more than 1&#xd7;10M. A measurement system used for the method includes a counter electrode, a first reference electrode, a first working electrode, a second working electrode, a second reference electrodeand a gel-coated electrode. The gel-coated electrodeis electrically equivalent to the second working electrode. The gel-coated electrodecomprises an electrode bodyand a gel. The surface of the electrode bodyis coated with the gel. The gelcontains a standard electrolyte and an ionic liquid. The gelcontains no water. The ionic liquid is hydrophobic and nonvolatile. The ionic liquid is composed of a cation and an anion. The standard electrolyte is composed of the cation and a halide ion.

Method for accurately quantifying a chemical substance contained in a sample solution at a significantly low concentration of not more than 1&#xd7;10&#x2212;8M

Provided is a method for accurately quantifying a chemical substance contained in a sample solution at a significantly low concentration of not more than 1&#xd7;10M. First, prepared is a measurement system including a counter electrode, a first reference electrode, a first working electrode, a second working electrodeand a second reference electrode. Second, voltages of Vvolts and Vvolts (V&#x3e;V) are applied to the first working electrodeand the second working electrode, respectively. Third, a voltage difference &#x394;E between the second working electrodeand the second reference electrodeis measured. Finally, the concentration of the chemical substance is calculated on the basis of the voltage difference &#x394;E.

[object Object]

The purpose of the invention is to provide a method for accurately quantifying a chemical substance by a substitutional stripping voltammetry technique. A method is provided for quantifying a chemical substance contained in a sample solution, and the method comprises preparing a measurement system. The measurement system comprises a pair of working electrodes (a first and a second electrodes), a counter electrode, and a gel-coated electrode. This gel-coated electrode comprises an electrode surface, a stripping gel, and a protection gel, and the protection gel covers the stripping gel.

Method for quantifying a chemical substance by a substitutional stripping voltammetry technique

The evaporation of the stripping liquidchanges the concentration of the standard electrolyte. This causes the quantification accuracy of the chemical substance to be lowered. In order to solve the above problem, this invention provides a method for quantifying a chemical substance contained in a sample solution, characterized by the following stripping gel. The stripping gel covers the stripping electrode, and contains a standard electrolyte and an ionic liquid; however, the stripping gel contains no water. Furthermore, the ionic liquid is hydrophobic and nonvolatile, and the standard electrolyte is consisted of the anion and a metallic ion.

Method for quantifying a chemical substance with substitutional stripping voltammetry and a sensor chip used therefor

Provided are a method for quantifying a chemical substance with high accuracy by substitutional stripping voltammetry, and a sensor chip used therefor. A method for quantifying a chemical substance in a sample solution, comprising the following steps: (a) preparing a sensor chip having a stripping gel covered with a protection gel, (b) supplying the sample solution to the surface of the sensor chip to cover the surface with the solution, (c) applying a potential to the first working electrode with potentiostat, and connecting the second working electrode to the stripping electrode to generate reactions on the electrodes, (d) applying a potential to the stripping electrode in a condition where no potential is applied to either the first or the second working electrode to measure a current through the stripping electrode, and (e) calculating, on the basis of the current, the concentration of the oxidation-reduction substance to quantify the chemical substance.

Method for quantifying a chemical substance by substitutional stripping voltammetry and a sensor chip used therefor

The purpose of the invention is to provide a method for quantifying a chemical substance with high accuracy using substitutional stripping voltammetry and a sensor chip used therefor. A sensor chip comprising a stripping electrode which is covered with stripping gel and a method utilizing the sensor chip. A reaction represented by the following formula (III) occurs at the stripping electrode.[Chem. 3]Ag+X&#x2192;AgX&#x2193;+&#x2003;&#x2003;(III)

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Shiga, Japan

Satoshi Arimoto